The lions were both cubs ... Because of the extreme quality of preservation of the cubs, researchers can see fur color, composition of parts, and details never before seen in these animals ...

For the white lions, it’s the migration that’s being interrupted by leucism. Their melanocytes are unable to migrate into the fur, where they’d normally create the golden color we expect ...

Cave lions are believed to have had less pronounced manes, and the difference in color patterns between the juveniles and adults gave the researchers insight into how the animal's fur pattern ...